Family AsteraceaeGrindelia squarrosa (Pursh) Dunal var. serrulata (Rydb.) Steyerm.curly-cup gum-weed, gum-plant, gum-weedGrindelia: named for David Hieronymous Grindel (1776-1836), a German pharmacologist, physician and professor of botany at Riga, Estoniasquarrosa:squarrose for "spreading horizontally; curved at the ends"